light weight and earthquake-resistant excellent fireproof ,heat insulation,sound insulation any pattern according to ... Function:characterized “air vitamins” Colourless and odourless. Environmentally friendly.Fireproof,soundproof,heat insulation energy saving, control indoor humidity. Can be ... .2 Specification:2440x1220x20-50mm2100x900x20-50 mm1000x610x12-50mm vermiculite fireproof and soundproof wall